Up & Coming Extensions

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Personal Level Indicators

Shows an indicator so you can tell if an email was addressed only to you (»), a group (›), or a mailing list.

Rated 4 out of 5 stars (12)
2,898 users

Restart

"Restart" menu and button, with configurable shortcut key.

Rated 5 out of 5 stars (37)
13,588 users

QuoteCollapse

Collapse and expand quotes. Please see the extension homepage for...

Rated 4 out of 5 stars (26)
9,683 users

GuifiProxy

Simple proxy manager
- Change proxy with two clicks
- Import and export proxies lists
- Manually add, delete and edit proxies
- Automatic authentication on proxies (bypass popup with login and password)
- Proxysel replacement

Rated 4 out of 5 stars (22)
1,892 users

Tag Toolbar

Add toolbar for toggling tags.

Rated 4 out of 5 stars (35)
15,077 users

Key Manager

KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation

Rated 3 out of 5 stars (20)
1,077 users

Just Restart!

Restart application with Ctrl+Shift+Z.

Rated 5 out of 5 stars (3)
1,391 users

Quote Colors

Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.

Rated 4 out of 5 stars (43)
13,168 users

Deselect on Delete No Restart

Disables selection of the next message when deleting

Rated 4 out of 5 stars (11)
1,034 users

SmtpSelect

A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.

Rated 5 out of 5 stars (36)
5,022 users

GNotifier No Restart

Add-on for Firefox and Thunderbird. Integrates Firefox's notifications with the OS's native notification system. It supports most Linux desktops and Windows 8.

Rated 5 out of 5 stars (42)
10,398 users

Simple Search-For Extension

Adds a "Search for" item to Thunderbird's context menu, like in Firefox.

Rated 5 out of 5 stars (14)
1,539 users

ReFwdFormatter

Remove the ">" prefix from quote when you make a reply.
Remove "[" and "]" from the subject when you make a forward.

Rated 4 out of 5 stars (7)
3,215 users

Quicktext

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Rated 4 out of 5 stars (274)
72,420 users

ownCloud for Filelink

Add ownCloud support to Thunderbird's filelink feature.

Rated 5 out of 5 stars (6)
1,423 users

SmartTemplate

This Add-on provides the smart and simple templates and abilities to customize the quote header flexibly.
Templates can be inserted automatically at the new/repling/forwarding message. A different template can be used respectively per account.

Rated 4 out of 5 stars (110)
1,638 users

EnForward

Save your email into Evernote by forwarding it to Evernote email address.
Before you use it, you need to specify your Evernote email address (see the screenshot).

This function can be invoked by "Forward to Evernote" in the context menu.

Rated 5 out of 5 stars (5)
1,994 users

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (7)
10,500 users

New Tab Button

It provide you the following functionalities:
* Open a selected message in a tab by a toolbar button
* Open a message in a tab by double-clicking its header view (disabled by default)
* Hide Lightning's Today Pane on opening a tab

Rated 5 out of 5 stars (8)
1,815 users

SelectionSK

Pops up user menu with useful tools (copy, highlight, translation, search, etc.) when text is selected with the mouse

Rated 5 out of 5 stars (64)
1,516 users